Design, construction and monitoring of continuous curved box girder bridge during bearing replacement-case study

IF 2.6 3区工程技术 Q2 ENGINEERING, CIVIL

Structure and Infrastructure Engineering Pub Date : 2023-10-10 DOI:10.1080/15732479.2023.2266725

Hongshuai Gao, Jiashuo Jian, Bochen Li, Yue Sun, Hongbo Liu

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引用次数: 0

Abstract

AbstractRubber bearing has been widely applied in bridge engineering because of its simple structure. During use, rubber bearings are prone to cracking, aging and shear deformation, which need to be replaced in time. In this paper, a bearing replacement project of continuous curved bridge in Lin’an, Zhejiang, China is taken as a case, and the design scheme, construction technology and construction monitoring of the bridge bearing replacement without interrupting traffic were proposed. Finite element model of this bridge was established, the jacking force and jacking height of this bridge were determined through analysis, and a scheme was designed for the reinforcement of piers. The construction process and specific construction technical points was introduced in detail. In addition, to determine and control the absolute safety of the jacking process, the jacking force, box-girder displacement, and bridge stress were monitored. The results show that the finite element analysis can provide technical guidance for the design theory of bearing replacement. The bearing replacement design scheme, construction technology and construction monitoring adopted in this project were safe and feasible. The research content has important reference significance for solving similar bridge bearing replacement projects in the future.Keywords: Bearing replacementbridge jackingconstruction monitoringcontinuous curved bridgefinite element analysisreinforcement scheme AcknowledgementsThe authors acknowledge the financial support provided by scientific research projects of basic scientific research expenses in Heilongjiang Provincial Colleges and Universities (2022-KYYWF-1094, 2021-KYYWF-0033), Key research and development plan guidance project in Heilongjiang Province (GZ20220083), Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education (Heilongjiang University), Heilongjiang Provincial Universities Central Support Local Universities Reform and Development Funding, and Key research and development plan guidance project in Heilongjiang Province.Disclosure statementNo potential conflict of interest was reported by the authors.

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连续曲线箱梁桥支座更换过程中的设计、施工与监测-实例研究

摘要橡胶支座因其结构简单，在桥梁工程中得到了广泛的应用。在使用过程中，橡胶支座容易出现开裂、老化和剪切变形，需要及时更换。本文以浙江临安某连续曲线桥支座更换工程为例，提出了不中断交通的桥梁支座更换的设计方案、施工技术和施工监控。建立了该桥的有限元模型，通过分析确定了该桥的顶推力和顶高，并设计了桥墩加固方案。详细介绍了施工过程和具体施工技术要点。此外，为了确定和控制顶进过程的绝对安全，对顶进力、箱梁位移和桥梁应力进行了监测。结果表明，有限元分析可以为轴承更换的设计理论提供技术指导。本工程采用的轴承更换设计方案、施工工艺及施工监控安全可行。研究内容对今后解决类似桥梁支座更换工程具有重要的参考意义。关键词:本文感谢黑龙江省高校基础科研经费科研项目(2022-KYYWF-1094、2021-KYYWF-0033)、黑龙江省重点研发计划指导项目(GZ20220083)、功能无机材料化学教育部重点实验室(黑龙江大学)、黑龙江省高校中央支持地方高校改革发展专项资金、黑龙江省重点研发计划指导项目。披露声明作者未报告潜在的利益冲突。

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来源期刊

Structure and Infrastructure Engineering 工程技术-工程：机械

CiteScore

9.50

自引率

8.10%

发文量

131

审稿时长

5.3 months

期刊介绍： Structure and Infrastructure Engineering - Maintenance, Management, Life-Cycle Design and Performance is an international Journal dedicated to recent advances in maintenance, management and life-cycle performance of a wide range of infrastructures, such as: buildings, bridges, dams, railways, underground constructions, offshore platforms, pipelines, naval vessels, ocean structures, nuclear power plants, airplanes and other types of structures including aerospace and automotive structures. The Journal presents research and developments on the most advanced technologies for analyzing, predicting and optimizing infrastructure performance. The main gaps to be filled are those between researchers and practitioners in maintenance, management and life-cycle performance of infrastructure systems, and those between professionals working on different types of infrastructures. To this end, the journal will provide a forum for a broad blend of scientific, technical and practical papers. The journal is endorsed by the International Association for Life-Cycle Civil Engineering ( IALCCE) and the International Association for Bridge Maintenance and Safety ( IABMAS).